A demonstrator heads towards Azadi Square during a rally in support of presidential candidate Mir Hossein Mousavi in western Tehran June 15, 2009. (REUTERS/Caren Firouz)
A member of a pro-government Basij militia throws a rock from the group's building in the direction of demonstrators as they approach the militia's base, near a rally supporting leading opposition presidential candidate Mir Hossein Mousavi in Tehran, Iran on Monday June 15, 2009. (AP Photo/Vahid Salemi)
Supporters of opposition leader Mir Hossein Mousavi take a break from demonstrating on June 18, 2009 in Tehran, Iran. (Getty Images)
In this photograph posted on the internet, a wounded man is treated on the street by others in Tehran, Iran on Saturday June 20, 2009. (AP Photo)
A supporter of opposition leader Mir Hossein Mousavi shows her hand, covered in the blood of a wounded person during a demonstration on June 20, 2009 in Tehran, Iran. (Getty Images)